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Ammonia-based Clean Energy System with Ultra-High Energy Density
Presentation

Ammonia-based Clean Energy System with Ultra-High Energy Density

Seonghoon Woo

Amogy builds a novel carbon-free high energy density system using ammonia (NH3) as a fuel, with the targeted system-level energy densities of >1,000 Wh/kg (gravimetric) and >750 Wh/L (volumetric), respectively.  The solution consists of ammonia storage, a miniaturized fuel processor (or called reformer/reactor) and a fuel cell. With highly efficient catalysts operating at significantly low temperature and heat-integrated hybrid reactor, the innovative energy system is optimized for the mobility applications requiring sustainable and dynamic operations. This new energy system could enable the electrification of heavy ground/sea/air transportations, where current existing and emerging technologies, e.g., Li-ion battery or gaseous hydrogen (H2),…

Rapid Long-Term Growth Projected for Fuel Cells
Article

Rapid Long-Term Growth Projected for Fuel Cells

Stephen H. Crolius February 21, 2019

Last month the Fuji-Keizai Group released its latest biennial review of the global market for fuel cells, “Future Outlook for Fuel Cell-Related Technology and Market in 2018.”  This is at least the third iteration of the report, and comparison across the different editions shows how expectations have evolved.  The report features both polymer electrolyte and solid oxide fuel cells.  Although not mentioned in the report, a number of groups are working on direct ammonia versions of both technologies.

Catalytic Membrane Reactors for Efficient Delivery of High Purity Hydrogen from Ammonia Decomposition
Presentation

Catalytic Membrane Reactors for Efficient Delivery of High Purity Hydrogen from Ammonia Decomposition

Zhenyu ZhangSimona LiguoriJ. Douglas WayColin A. Wolden

The deployment of fuel cell electric vehicles is constrained by the paucity of hydrogen fueling stations and price, which is dominated by the costs of hydrogen storage and transportation. With more hydrogen per volume than liquid H2 and an extensive distribution infrastructure in place, ammonia is a promising vector for efficient hydrogen distribution. In this talk we describe the development of innovative catalytic membrane reactor (CMR) technology for the delivery of high purity H2 from ammonia cracking. The CMR integrates state-of-the art catalysts with thin metal membranes in an innovative design. Conventionally, the catalyst is supplied to CMRs in the…

Ammonia as a Renewable Fuel for the Maritime Industry
Article

Ammonia as a Renewable Fuel for the Maritime Industry

Trevor Brown July 19, 2018

Last week, I wrote about a crucial new report that discusses four fuel technologies: batteries, hydrogen, ammonia, and nuclear. These could reduce the shipping sector's emissions in line with targets set in the IMO's Initial GHG Strategy. The report, Reducing CO2 Emissions to Zero, concludes that "all industry stakeholders ... need to get on with the job of developing zero CO2 fuels." This call to action should be consequential: it comes from the International Chamber of Shipping, an influential industry group that represents "more than 80% of the world merchant fleet." This week, I provide an example of the kind of research required, with an update on a project that aims to demonstrate "the technical feasibility and cost effectiveness of an ammonia tanker fueled by its own cargo." Although this project is still in its early days, I want to highlight three aspects that I believe will be crucial to its success. First, the work is being done by a consortium, bringing together many industry stakeholders, each with its own expertise and commercial interests. Second, the scope of research extends beyond conventional engine configurations to include not just new fuels but also new technology combinations; in other words, rather than assess new fuels in old engines, it aims to develop optimized propulsion designs for zero-emission fuels. And, third, its consideration of ammonia as a fuel begins with a comprehensive safety analysis.

The new generation of fuel cells: fast, furious, and flexible
Article

The new generation of fuel cells: fast, furious, and flexible

Trevor Brown April 12, 2017

At ARPA-E's recent Energy Innovation Summit in Washington, DC, Program Director Grigorii Soloveichik presented his vision for the future of transportation: hybrid electric vehicles that combine the advantages of both plug-in battery and fuel cell technologies. This "optimal solution" will require a new generation of fuel cell that is "fast, furious, and flexible." Fast, in terms of start-up / shut-down time. Furious, in terms of energy density. And flexible, in terms of fuel choice - specifically sustainable liquid fuels, like ammonia.

Presentation

Ammonia Fuel Cell and Fuel Synthesis Using Protonic Ceramics

Chuancheng DuanJianhua TongJason GanleyRyan O'Hayre

Proton-conducting ceramics synthesized with solid-state reactive sintering are employed as electrolytes for the synthesis of ammonia from hydrogen and nitrogen gases in electrolytic cells. Additionally, these cells function with excellent long-term stability and high efficiency when operated in galvanic (fuel cell) mode using ammonia fuel. Advances in electrolyte compositions and synthesis techniques are discussed alongside cell performance metrics.